XSIQ
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Biology - Nutrition
Nutrition
Nutrition is the process of taking food in and using it. All organisms
need energy to survive. They obtain this energy from the breakdown of
organic [1] compounds such as glucose.
Animals gain organic compounds from their food. Animals are described as
heterotrophic. [2]
Despite popular opinion, plants make all their own food. They absorb many
nutrients [3] from the air and the soil. They do, however, use a process
called photosynthesis to make an important energy-giving molecule called
glucose. Consequently they do not need to absorb it from the environment.
For plants, involves both photosynthesis [4] and absorption of nutrients
from the air and soil. Plants are described as autotrophic. [5]
Links:
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[1] http://alison.com/#
[2] http://alison.com/#
[3] http://alison.com/#
[4] http://alison.com/#
[5] http://alison.com/#